Which form of energy is released by uranium and plutonium in an atomic reactor? [9i-13]

nuclear

chemical

kinetic

electrical

Which form of energy is stored in a bow and arrow before release? [9i-14]

sound

elastic/strain potential

kinetic

heat/thermal

Which form of energy has a bullet? [9i-15]

nuclear

elastic/strain potential

kinetic

electrical

Which form of energy is carried by a current of moving charge? [9i-16]

nuclear

elastic/strain potential

kinetic

electrical

Which form of energy is needed for photosynthesis? [9i-17]

light

gravitational potential

kinetic

electrical

Which form of energy is stored by a lift on the top floor? [9i-18]

elastic/strain potential

gravitational potential

kinetic

electrical

One unit of electricity is equal to using a 1000W (1kW) appliance for 1 hour. [9i-19] What is the cost of using a 1.5kW heater for 2 hours if the cost of electricity is 7p/unit?

10.5p

3.5p

21p

7p

One unit of electricity is equal to using a 1000W (1kW) appliance for 1 hour. [9i-20] What is the cost of using a 3 kW heater for 6 hours if the cost of electricity is 6p/unit?

54p

£2.16

36p

£1.08

One unit of electricity is equal to using a 1000W (1kW) appliance for 1 hour. [9i-21] What is the cost of using a 60W light bulb for 20 hours hours if the cost of electricity is 5p/unit?

6p

£6.00

£1.20

60p

One unit of electricity is equal to using a 1000W (1kW) appliance for 1 hour. [9i-22] What is the cost of using a 700W iron for 2.5 hours if the cost of electricity is 8p/unit?

7.0p

14p

160p

3p

One unit of electricity is equal to using a 1000W (1kW) appliance for 1 hour. [9i-23] What is the cost of using a 200W hair dryer for 10 minutes if the cost of electricity is 6p/unit?

2p

1.2p

0.2p

12p

One unit of electricity is equal to using a 1000W (1kW) appliance for 1 hour. [9i-24] What is the cost of using a 4kW oven for 5 hours if the cost of electricity is 7p/unit?

£0.70

20p

35p

£1.40

What is the overall energy change using a loudspeaker? [9i-25]

electrical to sound

sound to electrical

chemical to kinetic

light to electrical

What is the overall energy change using a microphone? [9i-26]

electrical to sound

sound to electrical

chemical to kinetic

light to electrical

What is the overall energy change using a racing car? [9i-27]

electrical to sound

sound to electrical

chemical to kinetic

light to electrical

What is the overall energy change using a solar cell? [9i-28]

electrical to sound

sound to electrical

chemical to kinetic

light to electrical

What are the energy changes for a rising lift? [9i-29]

electrical => kinetic => gravitational potential energies

chemical => kinetic => electrical => heat energies

chemical => kinetic => gravitational potential energies

chemical => kinetic => elastic potential energies

What are the energy changes for using a diesel generator to operate an iron? [9i-30]

electrical => kinetic => gravitational potential energies

chemical => kinetic => electrical => heat energies

chemical => kinetic => gravitational potential energies

chemical => kinetic => elastic potential energies

What are the energy changes when a football is kicked into the air? [9i-31]

electrical => kinetic => gravitational potential energies

chemical => kinetic => electrical => heat energies

chemical => kinetic => gravitational potential energies

chemical => kinetic => elastic potential energies

What are the energy changes when winding up a clock? [9i-32]

electrical => kinetic => gravitational potential energies

chemical => kinetic => electrical => heat energies

chemical => kinetic => gravitational potential energies

chemical => kinetic => elastic potential energies

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. The main useful energy change from the diesel engine is? [9i-33]

chemical to kinetic energy

kinetic to gravitational potential energy

gravitational potential to kinetic energy

kinetic to heat energy

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. The main energy change happening at points (2) and (6) is? [9i-34]

chemical to kinetic energy

kinetic to gravitational potential energy

gravitational potential to kinetic energy

kinetic to heat energy

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. The main energy change happening at points (4) and (8) is? [9i-35]

chemical to kinetic energy

kinetic to gravitational potential energy

gravitational potential to kinetic energy

kinetic to heat energy

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. The main energy change happening at point (9) is? [9i-36]

chemical to kinetic energy

kinetic to gravitational potential energy

gravitational potential to kinetic energy

kinetic to heat energy

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. The main force acting after point (9) is? [9i-37]

friction

gravity

magnetic

air resistance

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. The main force acting at points (4) and (8) is? [9i-38]

friction

gravity

magnetic

air resistance

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. At which point does the ride car have the least useful gravitational potential energy and zero kinetic energy? [9i-39]

point (3)

point (5)

point (1)

point (8)

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. At which point does the ride car have about equal amounts useful gravitational potential energy and kinetic energy? [9i-40]

point (3)

point (5)

point (7)

point (4)

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. At which point does the ride car have zero kinetic energy? [9i-41]

point (1)

point (7)

point (5)

point (9)

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. At which point does the ride car have the most useful gravitational potential energy? [9i-42]

point (1)

point (3)

point (7)

point (4)

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. At which point does the ride car have the most kinetic energy? [9i-43]

point (8)

point (3)

point (5)

point (4)

Left is a basic design of a ride, starting with the car being pulled to the top of a hill, falling down the hill, passing through the loop and brought to a halt by applying a brake pad system. At which point does the ride car have the least useful gravitational potential energy and the most kinetic energy? [9i-44]

point (4)

point (3)

point (8)

point (5)

Wind generators are a useful energy resource to provide small scale power for a group of houses. Which is NOT true about this situation? [9i-45]

the overall energy change is heat to electrical energy

it is a renewable energy resource because the wind blows regularly

as an energy resource, it is advantage that there is little pollution compared to using fossil fuels

as the wind is uncertain, it is a disadvantage compared to using fossil fuels

Wind generators are a useful energy resource to provide small scale power for a group of houses. Which is NOT true about this situation? [9i-46]

the overall energy change is kinetic to electrical energy

it is a non-renewable energy resource because the wind does not blow regularly

as an energy resource, it is advantage that there is little pollution compared to using fossil fuels

as the wind is uncertain, it is a disadvantage compared to using fossil fuels

Wind generators are a useful energy resource to provide small scale power for a group of houses. Which is NOT true about this situation? [9i-47]

the overall energy change is kinetic to electrical energy

it is a renewable energy resource because the wind blows regularly

just because there is little pollution, it has no great advantage compared to using fossil fuels as an energy source

as the wind is uncertain, it is a disadvantage compared to using fossil fuels as an energy source

Wind generators are a useful energy resource to provide small scale power for a group of houses. Which is NOT true about this situation? [9i-48]

the overall energy change is kinetic to electrical energy

it is a renewable energy resource because the wind blows regularly

as an energy resource, it is advantage that there is little pollution compared to using fossil fuels

as the is wind fairly constant, it is an advantage compared to using fossil fuels

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-49]

95% of the electrical energy in the lamp is useful heat

the electric kettle is the most energy efficient appliance with least wasted energy

the food mixer converts 40% of the electrical energy into useful kinetic energy

The HiFi wastes 70% of the electrical energy, mainly as heat or thermal energy

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-50]

95% of the electrical energy is wasted as heat by the lamp by conduction and radiation

the electric kettle is the least energy efficient appliance with least wasted energy

the food mixer converts 40% of the electrical energy into useful kinetic energy

The HiFi wastes 70% of the electrical energy, mainly as heat or thermal energy

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-51]

95% of the electrical energy is wasted as heat by the lamp by conduction and radiation

the electric kettle is the most energy efficient appliance with least wasted energy

the food mixer converts 40% of the electrical energy into useful heat energy

The HiFi wastes 70% of the electrical energy, mainly as heat or thermal energy

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-52]

95% of the electrical energy is wasted as heat by the lamp by conduction and radiation

the electric kettle is the most energy efficient appliance with least wasted energy

the food mixer converts 40% of the electrical energy into useful kinetic energy

The HiFi wastes 50% of the electrical energy, mainly as heat or thermal energy

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-53]

the lamp is the most efficient appliance with the least wasted energy

3% of the electrical energy is wasted by the kettle, mainly by conduction and convection losses

the food mixer converts about 60% of the electrical energy into heat and sound energy

The HiFi produces sound energy that is not wasted

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-54]

the lamp is the least efficient appliance with the most wasted energy

3% of the electrical energy is wasted by the kettle, mainly by leaked conduction of electrical charge or current

the food mixer converts about 60% of the electrical energy into heat and sound energy

The HiFi produces sound energy that is not wasted

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-55]

the lamp is the least efficient appliance with the most wasted energy

3% of the electrical energy is wasted by the kettle, mainly by conduction and convection losses

the food mixer converts about 40% of the electrical energy into useful heat and sound energy

The HiFi produces sound energy that is not wasted

In the home electrical energy is coverted into useful forms by various appliances. Four examples (1)-(4) are listed below, including what happens to a % of the original electrical energy. Which statement of A-D is most likely NOT true? Examples: (1)A lamp coverts 5% of the energy into light. (2) A kettle uses 97% of the energy to heat the water. (3) a typical food mixer wastes 60% of the energy input. (4)A HiFi system converts 30% of the energy into sound and light. [9i-56]

the lamp is the least efficient appliance with the most wasted energy

3% of the electrical energy is wasted by the kettle, mainly by conduction and convection losses

the food mixer converts about 60% of the electrical energy into heat and sound energy

The HiFi produces sound energy that is wasted

Mobile phones operate on a charged up battery system. Which energy tranfer corresponds to listening to recorded message? [9i-57]

chemical => electrical => sound

electrical => chemical

chemical => electrical => light

light => electrical => sound

Mobile phones operate on a charged up battery system. Which energy tranfer corresponds to charging the battery? [9i-58]

Mobile phones operate on a charged up battery system. Which energy tranfer corresponds to recording pictures to transmit? [9i-60]

chemical => electrical => sound

electrical => chemical

chemical => electrical => light

light => electrical

A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals will produce the largest voltage? [9h-61]

magnesium and silver electrodes

zinc and iron electrodes

magnesium and zinc electrodes

zinc and tin electrodes

A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals will produce the smallest voltage? [9h-62]

magnesium and silver electrodes

zinc and iron electrodes

magnesium and zinc electrodes

zinc and tin electrodes

A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals will produce the biggest voltage? [9h-63]

zinc and copper electrodes

zinc and tin electrodes

magnesium and copper electrodes

tin and lead electrodes

A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals will produce the smallest voltage? [9h-64]

zinc and copper electrodes

zinc and tin electrodes

magnesium and copper electrodes

tin and lead electrodes

A simple battery (cell) can be made by dipping two different strips of metal (electrodes) into a conducting salt solution of ions. Which statement is TRUE about the battery cell? [9h-65]

the closer the two metals are in reactivity, the smaller the voltage produced

an electrical current cannot flow through the salt solution of ions

the smaller the metal elecrodes the bigger the current

the energy transfer change is from electrical to chemical energy

A simple battery (cell) can be made by dipping two different strips of metal (electrodes) into a conducting salt solution of ions. Which statement is TRUE about the battery cell? [9h-66]

the closer the two metals are in reactivity, the bigger the voltage produced

an electrical current can flow through the salt solution of ions

the smaller the metal elecrodes the bigger the current

the energy transfer change is from electrical to chemical energy

A simple battery (cell) can be made by dipping two different strips of metal (electrodes) into a conducting salt solution of ions. Which statement is TRUE about the battery cell? [9h-67]

the closer the two metals are in reactivity, the bigger the voltage produced

an electrical current cannot flow through the salt solution of ions

the bigger the metal elecrodes the bigger the current

the energy transfer change is from electrical to chemical energy

A simple battery (cell) can be made by dipping two different strips of metal (electrodes) into a conducting salt solution of ions. Which statement is TRUE about the battery cell? [9h-68]

the closer the two metals are in reactivity, the bigger the voltage produced

an electrical current cannot flow through the salt solution of ions

the smaller the metal elecrodes the bigger the current

the energy transfer change is from chemical to electrical energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which type of energy resource is used to make electricity from a torch battery? [9i-69]

chemical energy

sunlight energy

kinetic energy

heat energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which of the following types of energy resource is used to make electricity in a calculator solar cell? [9i-70]

chemical energy

sunlight energy

kinetic energy

heat energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which of the following types of energy resource is used to make electricity using a wind turbine? [9i-71]

chemical energy

geothermal energy

kinetic energy

gravitational potential energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which of the following types of energy resource is used to make electricity in a geothermal power station? [9i-72]

chemical energy

sunlight energy

gravitational potential energy

heat energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which of the following types of energy resource is used to make electricity from a diesel/petrol generator? [9i-73]

chemical energy

sunlight energy

kinetic energy

gravitational potential energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which of the following types of energy resource is used to make electricity from a mountain stream turbine generator? [9i-74]

chemical energy

gravitational potential energy

solar radiation energy

heat energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which of the following types of energy resource is used to make electricity from a river paddle wheel generator? [9i-75]

chemical energy

solar radiation energy

kinetic energy

heat energy

Various sorts of energy resources can be used to produce electricty for use in the home. Which of the following types of energy resource is used to make electricity inside a clockwork radio? [9i-76]

chemical energy

gravitational potential energy

heat energy

elastic potential energy

Various sorts of energy tranfers occur when generating and using electricty. Which of the following energy transfers happens in a hydroelectric power station? [9i-77]

gravitaional potential => kinetic => electrical energy

chemical => heat => kinetic => electrical energy

heat => kinetic => electrical energy

elastic potential => kinetic => electrical energy

Various sorts of energy tranfers occur when generating and using electricty. Which of the following energy transfers happens in a fossil fuel power station? [9i-78]

gravitaional potential => kinetic => electrical energy

chemical => heat => kinetic => electrical energy

heat => kinetic => electrical energy

elastic potential => kinetic => electrical energy

Various sorts of energy tranfers occur when generating and using electricty. Which of the following energy transfers happens in a geothermal power station? [9i-79]

gravitaional potential => kinetic => electrical energy

chemical => heat => kinetic => electrical energy

heat => kinetic => electrical energy

elastic potential => kinetic => electrical energy

Various sorts of energy tranfers occur when generating and using electricty. Which of the following energy transfers happens in a clockwork radio? [9i-80]

gravitaional potential => kinetic => electrical energy

chemical => heat => kinetic => electrical energy

heat => kinetic => electrical energy

elastic potential => kinetic => electrical energy

electrical

energy =>

useful/wasted energy outputs

energy input

transfers as a

3 J/s of wasted sound energy

of 600 J/s to

hair dryer

590 J/s of useful heat energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the hair dryer is in use? [9i-81]

7 J/s of useful kinetic energy

7 J/s of wasted potential energy

5 J/s of wasted kinetic energy

5 J/s of useful potential energy

electrical

energy =>

useful/wasted energy outputs

energy input

transfers as a

5 J/s of useful kinetic energy

of 400 J/s to

hair dryer

393 J/s of useful heat energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the hair dryer is in use? [9i-82]

2 J/s of useful kinetic energy

2 J/s of wasted sound energy

1 J/s of wasted kinetic energy

1 J/s of useful potential energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

4 J/s of useful kinetic energy

of 300 J/s to

hair dryer

1 J/s of wasted sound energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the hair dryer is in use? [9i-83]

290 J/s of wasted kinetic energy

295 J/s of wasted heat energy

200 of J/s of useful heat and 95 J/s of wasted heat energy

200 J/s of useful potential and 95 J/s of wasted heat energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

50 J/s of wasted sound energy

of 1000 J/s to

food mixer

400 J/s of useful kinetic energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the food mixer is in use? [9i-84]

550 J/s of wasted kinetic energy

300 J/s of useful heat and 250 J/s of wasted kinetic energy

300 J/s of useful heat and 350 J/s of wasted potential energy

550 J/s of wasted heat energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

80 J/s of wasted sound energy

of 1200 J/s to

food mixer

620 J/s of wasted heat energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the food mixer is in use? [9i-85]

500 J/s of useful kinetic energy

500 J/s of useful potential energy

300 J/s of useful heat and 280 J/s of wasted potential energy

580 J/s of wasted heat energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

370 J/s of useful kinetic energy

of 800 J/s to

food mixer

400 J/s of wasted heat energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the food mixer is in use? [9i-86]

30 J/s of wasted kinetic energy

30 J/s of wasted sound energy

20 J/s of useful heat energy

130 J/s of wasted heat energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

2 J/s of useful kinetic energy

of 200 J/s

CD-HiFi system

192 J/s of wasted heat energy

to the

is being

5 J/s of useful sound energy

appliance

used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the CD-HiFi system is in use? [9i-87]

2 J/s of wasted light energy

2 J/s of wasted sound energy

1 J/s of useful light energy

1 J/s of useful heat energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

4 J/s of useful kinetic energy

of 500 J/s

CD-HiFi system

2 J/s of useful light energy

to the

is being

464 J/s of wasted heat energy

appliance

used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the CD-HiFi system is in use? [9i-88]

30 J/s of wasted light energy

28 J/s of wasted sound energy

28 J/s of useful potential energy

30 J/s of useful sound energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

3 J/s of useful kinetic energy

of 400 J/s

CD-HiFi system

1 J/s of useful light energy

to the

is being

20 J/s of useful sound energy

appliance

used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the CD-HiFi system is in use? [9i-89]

376 J/s of wasted heat energy

300 J/s of useful heat and 66 J/s of useful potential energy

376 J/s of useful potential energy

290 J/s of wasted sound and 76 J/s wasted kinetic energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

287.5 J/s of wasted heat energy

of 300 J/s

CD-HiFi system

0.5 J/s of useful light energy

to the

is being

10.0 J/s of useful sound energy

appliance

used

? J/s of useful ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the CD-HiFi system is in use? [9i-90]

2.5 J/s of useful heat energy

2.0 J/s of useful kinetic energy

1.5 J/s of useful potential energy

1.5 J/s of wasted sound and 1.5 J/s wasted kinetic energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

1200 J/s of useful kinetic energy

of 3000 J/s to

washing machine

10 J/s of wasted sound energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the washing machine is in use? [9i-91]

1800 J/s of wasted kinetic energy

1790 J/s of useful potential energy

1300 J/s of useful heat and 490 J/s of wasted heat energy

1200 J/s of useful potential and 580 J/s of wasted heat energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

5 J/s of wasted sound energy

of 2000 J/s to

washing machine

1485 J/s of useful/wasted heat energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the washing machine is in use? [9i-92]

500 J/s of wasted kinetic energy

510 J/s of useful potential energy

500 J/s of useful potential and 10 J/s of wasted potential energy

510 J/s of useful kinetic energy

electrical

energy =>

useful/wasted energy outputs

input energy

transfers as a

900 J/s of kinetic energy

of 2500 J/s to

washing machine

1593 J/s of useful/wasted heat energy

the appliance

is being used

? J/s of ? energy

The table summarises what happens to the energy input and output of an electrical appliance. Which is the most likely missing quantity and form of output energy when the washing machine is in use? [9i-93]

7 J/s of wasted sound energy

7 J/s of useful potential energy

5 J/s of wasted kinetic energy

5 J/s of useful potential energy

Which of the following is a unit of mass? [9j-1]

kg

N

N/Kg

km

Which of the following is a unit of weight? [9j-2]

kg

N

N/Kg

km

Which of the following is a unit of gravitational field strength? [9j-3]

kg

N

N/Kg

km

Which of the following is a unit of distance? [9j-4]

kg

N

N/Kg

km

Which of the following is a unit of mass? [9j-5]

kilogram

newton

newtons per kilogram

kilometre

Which of the following is a unit of weight? [9j-6]

kilogram

newton

newtons per kilogram

kilometre

Which of the following is a unit of gravitational field strength? [9j-7]

kilogram

newton

newtons per kilogram

kilometre

Which of the following is a unit of distance? [9j-8]

kilogram

newton

newtons per kilogram

kilometre

Which of the following is a unit of force? [9j-9]

N

kg

N/Kg

km

Which of the following is a unit of force? [9j-10]

kilogram

newton

newtons per kilogram

kilometre

Which of the following matches the word gravity? [9j-11]

a force of attraction between all objects

the amount of matter in an object

any 'pulling' force acting on an object

potential energy

Which of the following matches the word mass? [9j-12]

a force of attraction between all objects

the amount of matter in an object

the force of gravity acting on an object

potential energy

Which of the following matches the word weight? [9j-13]

a force of attraction between all objects

the amount of matter in an object

the force of gravity acting on an object

potential energy

The force of gravity on the Earth's surface is 10N/kg. The force of gravity on the Moon's surface is 1.7N/kg (about 1/6th of Earth). A Moon bound astronaut on Earth has a mass of 68kg. Which of the following statements is TRUE? [9j-14]

the astronaut's weight on Earth is 68N

the astronaut's weight on the Moon is about 113N

the astronaut's mass is zero, half way to the moon

the astronaut's mass on the Moon is about 11.3kg

The force of gravity on the Earth's surface is 10N/kg. The force of gravity on the Moon's surface is 1.7N/kg (about 1/6th of Earth). A Moon bound astronaut on Earth has a mass of 68kg. Which of the following statements is TRUE?[9j-15]

the astronaut's weight on Earth is 680N

the astronaut's weight on the Moon is about 11.3N

the astronaut's mass is zero half way to the moon

the astronaut's mass on the Moon is about 11.3kg

The force of gravity on the Earth's surface is 10N/kg. The force of gravity on the Moon's surface is 1.7N/kg (about 1/6th of Earth). A Moon bound astronaut on Earth has a mass of 68kg. Which of the following statements is TRUE? [9j-16]

the astronaut's weight on Earth is 68N

the astronaut's weight on the Moon is about 680N

the astronaut's mass is zero half way to the moon

the astronaut's mass on the Moon is 68kg

The force of gravity on the Earth's surface is 10N/kg. The force of gravity on the Moon's surface is 1.7N/kg (about 1/6th of Earth). A Moon bound astronaut on Earth has a mass of 68kg. Which of the following statements is TRUE? [9j-17]

the astronaut's weight on Earth is 68N

the astronaut's mass on the Moon is about 113kg

the astronaut's weight is close to zero, two thirds of the way to the moon

the astronaut's mass on the Moon is about 11.3kg

Which is generally TRUE the further a planet is from the Sun? [9j-18]

its mass gets bigger

it is less difficult to see with a telescope

its speed gets faster

its year gets longer

Which pattern is generally TRUE the further a planet is from the Sun? [9j-19]

the mass gets bigger

it is less difficult to see with a telescope

its speed gets slower

the shorter its year

Which pattern is generally TRUE the further a planet is from the Sun? [9j-20]

the mass gets bigger

the year gets shorter

its speed gets faster

it is more difficult to see with a telescope

Which of the following forces keeps planets in orbit around the Sun? [9J-21]

gravity

magnetic

friction

electrical

Which force moves a compass needle? [9J-22]

gravity

magnetic

friction

electrical

Which force causes a meteorite to heat up when it enters the Earth's atmosphere? [9J-23]

gravity

magnetic

friction

electrical

Which force accellerates objects towards the Earth? [9J-2]

electrical

magnetic

friction

gravity

Which statement is FALSE about the force of gravitational attraction? [9J-25]

it is larger if the mass of an object is smaller

it decreases if the distance between objects increases

it happens between all objects

it acts towards the centre of an object

Which statement is FALSE about the force of gravitational attraction? [9J-26]

it is larger if the mass of an object is larger

it decreases if the distance between objects decreases

it happens between all objects

it acts towards the centre of an object

Which statement is FALSE about the force of gravitational attraction? [9J-27]

it is larger if the mass of an object is larger

it decreases if the distance between objects increases

it only happens between large objects

it acts towards the centre of an object

Which statement is FALSE about the force of gravitational attraction? [9J-28]

it is larger if the mass of an object is larger

it decreases if the distance between objects increases

it happens between all objects

it only acts around the surface of an object

Artificial satellites are usful objects which can be put up in space to orbit the Earth. Which statement is TRUE about the use of artificial satellites? [9J-29]

Artificial satellites are usful objects which can be put up in space to orbit the Earth. Which statement is TRUE about the use of artificial satellites? [9J-32]

they can be used to find water sources deep underground

they cannot monitor most of the Earth's weather systems

they cannot be put in orbit around other planets to study their surface

they can carry a telescope to study space beyond the solar system

Scientists are always seeking information about our Solar system and beyond. Which statement is most likely to be FALSE about this situation? [9J-33]

a new planet is most likely to be discovered by just making theoretical calculations

an old theory about the origin of the Earth is most likely to be replaced by a new theory if new evidence is produced

information on the planets is becoming increasingly more detailed and more accurate

our knowledge of the universe is continually increasing

Scientists are always seeking information about our Solar system and beyond. Which statement is most likely to be FALSE about this situation? [9J-34]

a new planet is most likely to be discovered by observing a solar system

an old theory about the origin of the Earth is most likely to be replaced by a new theory if old evidence is looked at again

information on the planets is becoming increasingly more detailed and more accurate

our knowledge of the universe is continually increasing

Scientists are always seeking information about our Solar system and beyond. Which statement is most likely to be FALSE about this situation? [9J-35]

a new planet is most likely to be discovered by observing a solar system

an old theory about the origin of the Earth is most likely to be replaced by a new theory if new evidence is produced

information on the planets is no longer becoming more detailed or more accurate

our knowledge of the universe is continually increasing

Scientists are always seeking information about our Solar system and beyond. Which statement is most likely to be FALSE about this situation? [9J-36]

a new planet is most likely to be discovered by observing a solar system

an old theory about the origin of the Earth is most likely to be replaced by a new theory if new evidence is produced

information on the planets is becoming increasingly more detailed and more accurate

our knowledge of the universe is not continuously increasing

Artificial satellites are usful objects which can be put up in space to orbit the Earth. Which statement is FALSE? [9J-37]

satellite 1 cannot accurately monitor all the Earth's surface

satellite 2 can be orbited in a fixed position above the same point on the Earth's surface

the closer the satellite is to the Earth, the faster the orbit speed

for communications, satellites can be used to receive and transmit radio and TV signals

Artificial satellites are usful objects which can be put up in space to orbit the Earth. Which statement is FALSE? [9J-37]

satellite 1 can accurately monitor all the Earth's surface

satellite 2 cannot be orbited in a fixed position above the same point on the Earth's surface

the closer the satellite is to the Earth, the faster the orbit speed

for communications, satellites can be used to receive and transmit radio and TV signals

Artificial satellites are usful objects which can be put up in space to orbit the Earth. Which statement is FALSE? [9J-39]

satellite 1 can accurately monitor all the Earth's surface

satellite 2 can be orbited in a fixed position above the same point on the Earth's surface

the closer the satellite is to the Earth, the slower the orbit speed

for communications, satellites can be used to receive and transmit radio and TV signals

Artificial satellites are usful objects which can be put up in space to orbit the Earth. Which statement is FALSE? [9J-40]

satellite 1 can accurately monitor all the Earth's surface

satellite 2 can be orbited in a fixed position above the same point on the Earth's surface

the closer the satellite is to the Earth, the faster the orbit speed

for communications, satellites can only transmit radio and TV signals, but cannot receive them

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time, which object is most likely to hit the ground 2nd? [9J-41]

200g hammer

2g feather

the closer the satellite is to the Earth, the faster the orbit speed

for communications, satellites can only transmit radio and TV signals, but cannot receive them

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time, which object is most likely to hit the ground 4th? [9J-42]

200g hammer

2g feather

200g pool ball

for communications, satellites can only transmit radio and TV signals, but cannot receive them

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time, which object is most likely to hit the ground 1st? [9J-43]

200g hammer

2g feather

200g pool ball

20g hollow plastic sphere

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time, which object is most likely to hit the ground 3rd? [9J-44]

200g hammer

2g feather

200g pool ball

20g hollow plastic sphere

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-45]

when an object falls to the surface of the Moon, the forces of gravity and magnetism affect the object

when an object falls to the surface of the Earth, the forces of gravity and friction affect the object

200g pool ball

20g hollow plastic sphere

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-46]

when an object falls to the surface of the Moon, only the force of gravity affects the object

when an object falls to the surface of the Earth, only the force of gravity affects the object

objects fall faster on the Earth than on the Moon because the Earth has a bigger mass producting a greater gravitational attractive force

all objects fall in the same time on the Moon because there is no atmosphere to cause a friction effect

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-47]

when an object falls to the surface of the Moon, only the force of gravity affects the object

when an object falls to the surface of the Earth, the forces of gravity and friction affect the object

objects fall faster on the Moon than on Earth because the Earth has an atmosphere which causes an opposing air-resistance force

all objects fall in the same time on the Moon because there is no atmosphere to cause a friction effect

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-48]

when an object falls to the surface of the Moon, only the force of gravity affects the object

when an object falls to the surface of the Earth, the forces of gravity and friction affect the object

objects fall faster on the Earth than on the Moon because the Earth has a bigger mass producting a greater gravitational attractive force

different objects fall in different times on the Moon because its gravity is weak compared to the Earth

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-49]

the best fair test of the effects of air resistance, would be to compare the fall of the hammer and the hollow plastic sphere

compared to Earth, all the objects would fall faster on Jupiter

different objects fall at different speeds on the Earth due to the effect of shape on the air-resistance force

objects like feathers, fall more slowly on Earth than most other objects, because they have a high surface area to mass ratio

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-50]

the best fair test of the effects of air resistance, would be to compare the fall of the pool ball and the hammer

compared to Earth, all the objects would fall slower on Jupiter with its thick atmosphere

different objects fall at different speeds on the Earth due to the effect of shape on the air-resistance force

objects like feathers, fall more slowly on Earth than most other objects, because they have a high surface area to mass ratio

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-51]

the best fair test of the effects of air resistance, would be to compare the fall of the pool ball and the hammer

compared to Earth, all the objects would fall faster on Jupiter

different objects fall at different speeds on the Earth due to the different effects of gravity on different masses

objects like feathers, fall more slowly on Earth than most other objects, because they have a high surface area to mass ratio

The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, at the same time,The earliest theories on falling objects suggested that the heavier the object, the faster it falls. We now know that all objects fall at the same speed if only the force of gravity is acting on the object. If the following four objects were dropped from 10 metres above the Earth's surface, and the experiment repeated on the Moon, which statement is most likely to be FALSE? [9J-52]

the best fair test of the effects of air resistance, would be to compare the fall of the pool ball and the hammer

compared to Earth, all the objects would fall faster on Jupiter

different objects fall at different speeds on the Earth due to the effect of shape on the air-resistance force

objects like feathers, fall more slowly on Earth than most other objects, because they have a such a small mass

Which of the following is a unit of time? [9k-1]

s

m

m/s

N

Which of the following is a unit of length? [9k-2]

s

m

m/s

N

Which of the following is a unit of speed? [9k-3]

s

m

m/s

N

Which of the following is a unit of force? [9k-4]

s

m

m/s

N

Which of the following is a unit of force? [9k-5]

newtons

metres per second

metres per sec per sec

newton x metres

Which of the following is a unit of speed? [9k-6]

newtons

metres per second

metres per sec per sec

newton x metres

Which of the following is a unit of distance? [9k-7]

km/s

h

cm

y

Which of the following is a unit of speed? [9k-8]

m/s2

h

cm

km/h

Which of the following is a unit of distance? [9k-9]

km

h

cm/s

N

Which of the following is a unit of time? [9k-10]

km

h

cm/s

N

Which of the following is a unit of speed? [9k-11]

km/h2

h

cm/s

N

Which of the following is a unit of speed? [9k-12]

newtons per kilogram

metres per second per second

seconds per centimetre

kilometres per hour

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). At which point is the speeding up or acceleration the greatest? [9k-13]

point (1)

point (2)

point (3)

point (5)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). At which point is the speed constant? [9k-14]

point (1)

point (4)

point (6)

point (2)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). Between which points is the speed constant? [9k-15]

points (5) and (6)

points (1) and (2)

points (7) and (8)

points (2) and (3)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). At which point was the parachute opened? [9k-16]

point (2)

point (3)

point (7)

point (5)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). Between which points is the speed decreasing (deceleration)? [9k-17]

points (5) and (7)

points (2) and (3)

points (7) and (8)

points (4) and (5)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). Between which points is the air resistance force (friction) equal to the force of gravity on the parachutist? [9k-18]

points (1) and (3)

points (3) and (5)

points (5) and (6)

points (6) and (7)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). Between which points is the air resistance force (friction) equal to the force of gravity on the parachutist? [9k-19]

points (1) and (2)

points (2) and (3)

points (7) and (8)

points (5) and (6)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). At which point is the gravity force on the parachutist greater than the air resistance force (friction)? [9k-20]

point (6)

point (4)

points (8)

point (2)

The graph shows how the speed of a parachutist varies from point (1) immediately jumping out of an aeroplane, to landing safely with the parachute opened at point (8). At which point is the air resistance force (friction) greater than the gravity force on the parachutist? [9k-21]

point (6)

point (4)

point (8)

point (2)

When a lift is operating, the two main forces are the tension in the cable, from the motor action, and the weight of the lift car and people, due to gravity. Which of the following applies to the situation when the lift is stationary? [9k-22]

the tension is equal to the weight

the tension is more than the weight

the tension is less than the weight

When a lift is operating, the two main forces are the tension in the cable, from the motor action, and the weight of the lift car and people, due to gravity. Which of the following applies to the situation when the lift is moving up at a constant speed? [9k-23]

the tension is equal to the weight

the tension is more than the weight

the tension is less than the weight

When a lift is operating, the two main forces are the tension in the cable, from the motor action, and the weight of the lift car and people, due to gravity. Which of the following applies to the situation when the lift is moving down at a constant speed? [9k-24]

the tension is equal to the weight

the tension is more than the weight

the tension is less than the weight

When a lift is operating, the two main forces are the tension in the cable, from the motor action, and the weight of the lift car and people, due to gravity. Which of the following applies to the situation when the lift is moving upwards with increasing speed? (e.g. start of lift ascent) [9k-25]

the tension is equal to the weight

the tension is more than the weight

the tension is less than the weight

When a lift is operating, the two main forces are the tension in the cable, from the motor action, and the weight of the lift car and people, due to gravity. Which of the following applies to the situation when the lift is moving upwards and slowing down? (e.g. as lift reaches top) [9k-26]

the tension is equal to the weight

the tension is more than the weight

the tension is less than the weight

When a lift is operating, the two main forces are the tension in the cable, from the motor action, and the weight of the lift car and people, due to gravity. Which of the following applies to the situation when the lift is moving down with increasing speed? (e.g. as lift starts descent) [9k-27]

the tension is equal to the weight

the tension is more than the weight

the tension is less than the weight

When a lift is operating, the two main forces are the tension in the cable, from the motor action, and the weight of the lift car and people, due to gravity. Which of the following applies to the situation when the lift is moving down and slowing down? (e.g. as lift reaches bottom) [9k-28]

the tension is equal to the weight

the tension is more than the weight

the tension is less than the weight

A broken down bus is being towed along a road by a truck. Which force is represented on the diagram by F3 and F8? [9k-29]

friction

weight

upthrust

tension

A broken down bus is being towed along a road by a truck. Which force is represented on the diagram by F4 and F9? [9k-30]

air resistance

weight

upthrust

thrust

tension

A broken down bus is being towed along a road by a truck. Which force is represented on the diagram by F2 and F7? [9k-31]

friction

weight

upthrust

thrust

tension

A broken down bus is being towed along a road by a truck. Which force is represented on the diagram by F1 and F6? [9k-32]

air resistance

weight

upthrust

thrust

tension

A broken down bus is being towed along a road by a truck. Which force is represented on the diagram by F10? [9k-33]

friction

weight

upthrust

thrust

tension

A broken down bus is being towed along a road by a truck. Which force is represented by on the diagram F5? [9k-34]

air resistance

weight

upthrust

thrust

tension

Which of the following matches a speed of 9.8m/s? [9k-35]

a sprinter runs 100m in 10.2s

a conveyer belt moves along 20m in 2.5s

a cyclist covers 500m in 40s

thrust

Which of the following matches a speed of 8.0m/s? [9k-36]

a sprinter runs 100m in 10.2s

a conveyer belt moves along 20m in 2.5s

a cyclist covers 500m in 40s

a car moves 400m in 36s

Which of the following matches a speed of 12.5m/s? [9k-37]

a sprinter runs 100m in 10.2s

a conveyer belt moves along 20m in 2.5s

a cyclist covers 500m in 40s

a car moves 400m in 36s

Which of the following matches a speed of 11.1m/s? [9k-38]

a sprinter runs 100m in 10.2s

a conveyer belt moves along 20m in 2.5s

a cyclist covers 500m in 40s

a car moves 400m in 36s

Which graph represents speeding up? [9k-39]

graph (1)

graph (2)

graph (3)

graph (4)

Which graph represents a stationary object? [9k-40]

graph (1)

graph (2)

graph (3)

graph (4)

Which graph represents slowing down? [9k-41]

graph (1)

graph (2)

graph (3)

graph (4)

Which graph represents constant speed greater than zero? [9k-42]

graph (1)

graph (2)

graph (3)

graph (4)

[9k-43] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. Which describes the motion of the car from 20 to 40 seconds?

constant speed

slowing down

speeding up

stopped

[9k-44] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. Which describes the motion of the car from 50 to 80 seconds?

constant speed

slowing down

speeding up

stopped

[9k-45] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. Which describes the motion of the car from 0 to 20 seconds?

constant speed

slowing down

speeding up

stopped

[9k-46] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. Which describes the motion of the car from 82 to 90 seconds?

constant speed

slowing down

speeding up

stopped

[9k-47] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. What is the average speed of the car from 0 to 20 seconds?

10 m/s

20 m/s

1.5 m/s

5.0 m/s

[9k-48] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. What is the average speed of the car from 20 to 40 seconds?

10 m/s

20 m/s

40.0 m/s

30.0 m/s

[9k-49] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. What is the average speed of the car from 40 to 80 seconds?

12.5 m/s

15.0 m/s

7.5 m/s

30.0 m/s

[9k-50] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. What is the average speed of the car from 82 to 90 seconds?

10.0 m/s

2.0 m/s

1.0 m/s

0.0 m/s

[9k-51] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. How far has the car travelled between 0 and 25 seconds?

300 m

320 m

340 m

260 m

[9k-52] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. How far has the car travelled between 30 and 64 seconds?

480 m

440 m

460 m

420 m

[9k-53] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. How far has the car travelled between 52 and 64 seconds?

60 m

40 m

80 m

120 m

[9k-54] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time.

How far has the car travelled between 82 and 90 seconds?

40 m

20 m

160 m

0 m

[9k-55] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. The car engine produces the forward motion thrust force F1. Acting against this are the combined forces of (i) moving parts friction (including braking) and (ii) the drag from air resistance, giving a total force F2. In which time span is force F2 more than F1?

44 to 82 seconds

20 to 44 seconds

0 to 20 seconds

0 m

[9k-56] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. The car engine produces the forward motion thrust force F1. Acting against this are the combined forces of (i) moving parts friction (including braking) and (ii) the drag from air resistance, giving a total force F2. In which time span is force F1 equal to F2?

44 to 82 seconds

20 to 44 seconds

0 to 20 seconds

82 to 90 seconds

[9k-57] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. The car engine produces the forward motion thrust force F1. Acting against this are the combined forces of (i) moving parts friction (including braking) and (ii) the drag from air resistance, giving a total force F2. In which time span is force F1 more than F2?

44 to 82 seconds

20 to 44 seconds

0 to 20 seconds

82 to 90 seconds

[9k-58] The graph shows part of an urban car journey in terms of the distance the car has travelled in a certain time. The car engine produces the forward motion thrust force F1. Acting against this are the combined forces of (i) moving parts friction (including braking) and (ii) the drag from air resistance, giving a total force F2. In which time span are forces F1 and F2 both zero?

44 to 82 seconds

20 to 44 seconds

0 to 20 seconds

82 to 90 seconds

[9k-59] A cyclist is travelling at an average speed of 5 m/s.How far will the cyclist travel in 10 s?

50 m

2 m

0.5 m

500 m

[9k-60] A cyclist is travelling at an average speed of 10 m/s.How far will the cyclist travel in 20 s?

2 m

200 m

0.5 m

50 m

[9k-61] A cyclist is travelling at an average speed of 2.5 m/s.How far will the cyclist travel in 1 minute?

2.5 m

180 m

150 m

50 m

[9k-62] A cyclist is travelling at an average speed of 6 m/s.How far will the cyclist travel in 2 minutes?

24 m

3 m

360 m

720 m

[9k-63] A racing car is travelling at an average speed of 20 m/s through a curvey section of the race track. How long will it take the driver to cover 600 m?

30 s

60 s

15 s

3 s

[9k-64] A racing car is travelling at an average speed of 40 m/s through a curvey section of the race track. How long will it take the driver to cover 1 km?

40 s

25 s

15 s

3 s

[9k-65] A racing car is travelling at an average speed of 60 m/s through a straight section of the race track. How long will it take the driver to cover 300 m?

18 s

15 s

5 s

20 s

[9k-66] A racing car is travelling at an average speed of 80 m/s through a straightish section of the race track. How long will it take the driver to cover 2 km?

40 s

20 s

50 s

25 s

[9k-67] A child is playing on a slide. Which statement is NOT true?

the two main forces involved are weight due to gravity and friction acting in the same direction

when the force of friction equals the child's weight, the downward speed is constant

if the child sat on a rough cushion the 'slide' will be slower

25 s

[9k-68] A child is playing on a slide. Which statement is NOT true?

the two main forces involved are weight due to gravity and friction acting in opposite directions

when the force of friction equals the child's weight, the downward speed decreases

if the child sat on a rough cushion the 'slide' will be slower

25 s

[9k-69] A child is playing on a slide. Which statement is NOT true?

the two main forces involved are weight due to gravity and friction acting in opposite directions

when the force of friction equals the child's weight, the downward speed is constant

if the child sat on a rough cushion the 'slide' will be faster

if the child holds out their arms and holds up their head the 'slide' will be slower

[9k-70] A child is playing on a slide. Which statement is NOT true?

the two main forces involved are weight due to gravity and friction acting in opposite directions

when the force of friction equals the child's weight, the downward speed is constant

if the child sat on a rough cushion the 'slide' will be slower

if the child tucks in their arms and head the 'slide' will be slower

A car travels 10 km in 15 minutes. What is the average speed of the car? [9k-71]

40 km/hour

1.5 km/hour

20 km/hour

if the child tucks in their arms and head the 'slide' will be slower

A train travels 40 km in 20 minutes. What is the average speed of the train? [9k-72]

2 km/hour

120 km/hour

20 km/hour

80 km/hour

A speed skater travels 120 m in 8 seconds. What is the average speed of the skater? [9k-73]

960 m/s

0.67 m/s

15 m/s

10 m/s

An athlete completes a 400 m race in 50 seconds. What is the average speed of the athlete? [9k-74]

0.125 m/s

10 m/s

9 m/s

8 m/s

A car travels 40 km in 30 minutes. What is the average speed of the car? [9k-75]

80 km/hour

1.33 km/hour

40 km/hour

120 km/hour

A train travels 60 km in 15 minutes. What is the average speed of the train? [9k-76]

300 km/hour

240 km/hour

120 km/hour

180 km/hour

A skier travels 300 m in 5 seconds. What is the average speed of the skater? [9k-77]

150 m/s

30 m/s

60 m/s

15 m/s

An athlete completes a 800 m race in 1 minute 51 seconds. What is the average speed of the athlete? [9k-78]

6.7 m/s

8.1 m/s

6.1 m/s

7.2 m/s

Which is NOT true about the situation illustrated? [9k-79]

when the pedal power force equals the drag or friction forces, the speed is increased

if the cyclist crouches down and wears smoother clothing the speed can be increased without increasing pedal power

if the pedal power force exceeds the drag or friction forces, the cyclist will increase in speed

drag or air resistance is caused by the collision of air particles with the surface of the moving object

Which is NOT true about the situation illustrated? [9k-80]

when the pedal power force equals the drag or friction forces, the speed is constant

if the cyclist crouches down and wears smoother clothing the speed cannot be increased without increasing pedal power

if the pedal power force exceeds the drag or friction forces, the cyclist will increase in speed

drag or air resistance is caused by the collision of air particles with the surface of the moving object

Which is NOT true about the situation illustrated? [9k-81]

when the pedal power force equals the drag or friction forces, the speed is constant

if the cyclist crouches down and wears smoother clothing the speed can be increased without increasing pedal power

if the pedal power force exceeds the drag or friction forces, the cyclist will be able to maintain a constant speed

drag or air resistance is caused by the collision of air particles with the surface of the moving object

Which is NOT true about the situation illustrated? [9k-82]

when the pedal power force equals the drag or friction forces, the speed is constant

if the cyclist crouches down and wears smoother clothing the speed can be increased without increasing pedal power

if the pedal power force exceeds the drag or friction forces, the cyclist will increase in speed

drag or air resistance is caused by the heating up of the surface of the moving object

Which of the following is NOT true? [9k-83]

if the air resistant drag and other friction forces are less than the engine power of the car, the car will gradually come to a halt

air resistance drag increases the faster the car travels

tyres grip the road using the force of friction

if the foot is taken off the accelerator pedal, the car slows down because the drag or friction force is greater than the motion thrust force

Which of the following is NOT true? [9k-84]

if the air resistant drag and other friction forces are greater than the engine power of the car, the car will slow down

air resistance drag stays the same whatever the speed of the car

tyres grip the road using the force of friction

if the foot is taken off the accelerator pedal, the car slows down because the drag or friction force is greater than the motion thrust force

Which of the following is NOT true? [9k-85]

if the air resistant drag and other friction forces are greater than the engine power of the car, the car will slow down

air resistance drag increases the faster the car travels

tyres grip the road using the force of gravity

if the foot is taken off the accelerator pedal, the car slows down because the drag or friction force is greater than the motion thrust force

Which of the following is NOT true? [9k-86]

if the air resistant drag and other friction forces are greater than the engine power of the car, the car will slow down

air resistance drag increases the faster the car travels

tyres grip the road using the force of friction

if the foot is taken off the accelerator pedal, the car slows down because the drag or friction force is reduced

The graph shows the comparative distance-time behaviour of a 500kg object dropped on the Earth, Jupiter and the Earth's Moon from a height of 20 000m. Some 'drops' may involve the use of a parachute. Which d-t graph line corresponds to dropping the object on Jupiter? [9k-87]

graph line (1)

graph line (2)

graph line (3)

graph line (4)

The graph shows the comparative distance-time behaviour of a 500kg object dropped on the Earth, Jupiter and the Earth's Moon from a height of 20 000m. Some 'drops' may involve the use of a parachute. Which d-t graph line corresponds to dropping the object on Earth without a parachute? [9k-88]

graph line (1)

graph line (2)

graph line (3)

graph line (4)

The graph shows the comparative distance-time behaviour of a 500kg object dropped on the Earth, Jupiter and the Earth's Moon from a height of 20 000m. Some 'drops' may involve the use of a parachute. Which d-t graph line corresponds to dropping the object on Earth with a parachute deployed on the way down? [9k-89]

graph line (1)

graph line (2)

graph line (3)

graph line (4)

The graph shows the comparative distance-time behaviour of a 500kg object dropped on the Earth, Jupiter and the Earth's Moon from a height of 20 000m. Some 'drops' may involve the use of a parachute. Which d-t graph line corresponds to dropping the object on the Moon without a parachute? [9k-90]

graph line (1)

graph line (2)

graph line (3)

graph line (4)

The graph shows the comparative distance-time behaviour of a 500kg object dropped on the Earth, Jupiter and the Earth's Moon from a height of 20 000m. Some 'drops' may involve the use of a parachute. Which d-t graph line corresponds to dropping the object on the Moon with a parachute? [9k-91]

graph line (1)

graph line (2)

graph line (3)

graph line (4)

Which animal has a shape well adapted for speed through air or water? [9k-92]

dolphin

hare

duck

giraffe

Which animal has a shape well adapted for speed through air or water? [9k-93]

hare

kestrel

duck

giraffe

Which animal has a shape well adapted for speed through air or water? [9k-94]

fox

duck

seal

elephant

In which time period is the train travelling at 100 km/hour? [9k-95]

1300 to 1400 hours

1400 to 1530 hours

1530 to 1700 hours

1700 to 1800 hours

In which time period is the train stopped? [9k-96]

1300 to 1400 hours

1400 to 1530 hours

1530 to 1700 hours

1700 to 1800 hours

In which time period is the train travelling at 66.7 km/hour? [9k-97]

1300 to 1400 hours

1400 to 1530 hours

1530 to 1700 hours

1700 to 1800 hours

In which time period is the train travelling at 50 km/hour? [9k-98]

1300 to 1400 hours

1400 to 1530 hours

1530 to 1700 hours

1700 to 1800 hours

How far has the train travelled by 4.30pm? [9k-99]

170 km

150 km

200 km

185 km

How far has the train travelled by 1.45pm? [9k-100]

60 km

75 km

90 km

95 km

At what time has the train travelled 215 km? [9k-101]

5.45pm

5.30pm

5.15pm

5pm

At what time has the train travelled 120 km? [9k-102]

3.30pm

4pm

4.15pm

3.45pm

During which time period is the cyclist speeding up (accelerating) at the slowest rate? [9k-103]

0 to 40 seconds

40 to 50 seconds

50 to 90 seconds

90 to 100 seconds

During which time period is the cyclist getting faster by 5 m/s in 10 seconds? [9k-104]

0 to 40 seconds

40 to 50 seconds

50 to 90 seconds

90 to 100 seconds

During which time period is the cyclist moving at constant speed? [9k-105]

0 to 40 seconds

40 to 50 seconds

50 to 90 seconds

90 to 100 seconds

During which time period is the cyclist increasing speed (accelerating) at the greatest rate? [9k-106]

0 to 40 seconds

40 to 50 seconds

50 to 90 seconds

90 to 100 seconds

What is speed of the cyclist after 32 seconds? [9k-107]

8 m/s

7 m/s

6 m/s

10 m/s

What is speed of the cyclist after 94 seconds? [9k-108]

17 m/s

19 m/s

21 m/s

15 m/s

How long did it take the cyclist to reach a speed of 13 m/s? [9k-109]

43 s

48 s

46 s

51 s

How long did it take the cyclist to reach a speed of 3 m/s? [9k-110]

11 s

9 s

10 s

12 s

[9k-111]During which time period is the train moving with the smallest acceleration other than when at constant speed?

0 to 20 mins

20 to 40 mins

40 to 50 mins

50 to 70 mins

70 to 100 s

[9k-112]During which time period is the train moving at the lowest constant speed?

0 to 20 mins

20 to 40 mins

40 to 50 mins

50 to 70 mins

70 to 100 s

[9k-113]During which time period is the train moving with the greatest acceleration?

0 to 20 mins

20 to 40 mins

40 to 50 mins

50 to 70 mins

70 to 100 s

[9k-114]During which time period is the train moving at the highest constant speed?

0 to 20 mins

20 to 40 mins

40 to 50 mins

50 to 70 mins

70 to 100 s

[9k-115]During which time period is the train steadily decreasing in speed?

0 to 20 mins

20 to 40 mins

40 to 50 mins

50 to 70 mins

70 to 100 s

[9k-116]At what time into the journey is the train moving at 80 km/h?

16 min

15 min

18 min

13 min

[9k-117]At what time into the journey is the train moving at 140 km/h?

40 min

44 min

42 min

45 min

[9k-118]What is the speed of the train after 82 minutes?

112 km/hour

114 km/hour

120 km/hour

108 km/hour

[9k-119]What is the speed of the train after 14 minutes?

73 km/hour

67 km/hour

68 km/hour

70 km/hour

Which diagram (?) corresponds to when the acceleration is the greatest? [9k-120]

diagram (1)

diagram (3)

diagram (4)

diagram (5)

diagram (7)

Which diagram (?) corresponds to when the parachutist first reaches a constant high speed? [9k-121]

diagram (1)

diagram (3)

diagram (4)

diagram (5)

diagram (7)

Which diagram (?) corresponds to when moving at constant speed just before the parachute is opened? [9k-122]

diagram (1)

diagram (3)

diagram (4)

diagram (5)

diagram (7)

Which diagram (?) corresponds to just after the parachute was opened? [9k-123]

diagram (1)

diagram (3)

diagram (4)

diagram (5)

diagram (7)

Which diagram (?) corresponds to when the parachutist first reaches a low constant speed? [9k-124]

diagram (1)

diagram (3)

diagram (4)

diagram (5)

diagram (7)

Which of the following is a unit of force? [9L-1]

N

m2

N/m2

Nm

Which of the following is a unit of area? [9L-2]

N

m2

N/m2

Nm

Which of the following is a unit of pressure? [9L-3]

N

m2

N/m2

Nm

Which of the following is a unit of a moment? [9L-4]

N

m2

N/m2

Nm

Which of the following is a unit of pressure? [9L-5]

Pa

m2

N

Nm

Which of the following is a unit of force? [9L-6]

newtons x metres

newtons

metres squared

newtons per square metre

Which of the following is a unit of area? [9L-7]

newtons x metres

newtons

metres squared

newtons per square metre

Which of the following is a unit of pressure? [9L-8]

newtons x metres

newtons

metres squared

newtons per square metre

Which of the following is a unit of a moment? [9L-9]

newtons x metres

newtons

metres squared

newtons per square metre

Which of the following is a unit of pressure? [9L-10]

newtons x metres

pascal

metres squared

newtons

Which is 'designed' to create the greatest pressure on contact with a surface? [9L-11]

the feet of a camel

skis

drawing pin

snowshoes

Which is 'designed' to create the greatest pressure on contact with a surface? [9L-12]

the feet of a camel

skis

snowshoes

hypodermic needle on a syringe

Which is 'designed' to create the greatest pressure on contact with a surface? [9L-13]

scissor blade

snow board

snowshoes

the feet of a camel

Which is 'designed' to create the least pressure on contact with a surface? [9L-14]

scissor blade

snowshoes

drawing pin

hypodermic syringe needle

Which is 'designed' to create the least pressure on contact with a surface? [9L-15]

scissor blade

drawing pin

feet of a camel

hypodermic syringe needle

Which is 'designed' to create the least pressure on contact with a surface? [9L-16]

scissor blade

drawing pin

hypodermic syringe needlel

railway sleeper supporting the steel rail

If weight w1 is 4 N, distance d2 is 50 cm and weight w2 is 2 N, what distance d1, must weight w1 be from the pivot rod to balance the ruler? [9L-17]

25 cm

20 cm

10 cm

40 cm

If distance d1 is 40 cm, distance d2 is 8 cm and weight w2 is 15 N, what weight must w1 be to balance the ruler? [9L-18]

6 N

3 N

9 N

12 N

If weight w1 is 6 N, distance d1 is 30 cm and weight w2 is 36 N, what must distance d2 be to balance the ruler? [9L-19]

10.0 cm

15.0 cm

5.0 cm

2.5 cm

If distance d1 is 240 mm, weight w1 is 8 N and distance d2 is 320 mm, what weight must w2 be to balance the ruler? [9L-20]

12 N

3 N

4 N

6 N

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Two children sit in rubber tyres connected to a see-saw system. Which two children will balance the see-saw in a horizontal (level) position? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-21]

Joe and Sally

Joe and Mike

Mike and Sally

Mary and Sally

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Two children sit in rubber tyres connected to a see-saw system. If Joe sits on the left, which children will cause the see-saw to tip down on the right (clockwise)? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-22]

Sally or Mike

Mary or Fred

only Mary

only Fred

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Two children sit in rubber tyres connected to a see-saw system. If Sally sits on the left, which children cannot cause the see-saw to tip down on the right (clockwise)? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-23]

only Mike

only Joe

Joe or Mike

Mary or Fred

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Four children sit in rubber tyres connected to a see-saw system. If Mary and Sally sit on the right, which two children sitting on the left will balance the see-saw horizontally (level)? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-24]

Fred and Joe

Mike and Joe

Joe and his identical twin brother

Fred and Mike

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Mr Brown, weighing 755 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw tips down on the left side (anticlockwise) when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-25]

Joe and Mike

Mary and Sally

Joe and Sally

Mary and Fred

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Mr Gravity, weighing 770 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw stays in a horizontal (level) position when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-26]

Joe and Mike

Mary and Sally

Joe and Sally

Mary and Fred

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Mr Moon, weighing 760 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw stays in a horizontal (level) position when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-27]

Joe and Mike

Mary and Sally

Joe and Sally

Mary and Fred

child

Joe

Mary

Fred

Sally

Mike

weight (N)

380

390

400

380

370

Mr Smith, weighing 780 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw tips down on the right side when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-28]

Joe and Mike

Mary and Sally

Joe and Sally

Mary and Fred

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-29]

the caterpillar tracks of a building site vehicle

the blades of ice skates

a cheese knife blade

the crampons on a mountain climbers boots

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-30]

the blades of ice skates

a roofer laying a ladder across a roof to work on a repair

a cheese knife blade

the crampons on a mountain climbers boots

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-31]

a cheese knife blade

the blades of ice skates

a snowboard for winter sports

the crampons on a mountain climbers boots

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-32]

the crampons on a mountain climbers boots

the blades of ice skates

a cheese knife blade

the skis for mountain sports

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-33]

an elephant's foot

the blades of ice skates

a cheese knife blade

the crampons on a mountain climbers boots

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to increase the pressure of the situation? [9L-34]

an elephant's foot

the blades of ice skates

the skis for mountain sports

the caterpillar tracks of a building site vehicle

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to increase the pressure of the situation? [9L-35]

a roofer laying a ladder across a roof to work on a repair

the skis for mountain sports

a cheese knife blade

the caterpillar tracks of a building site vehicle

Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to increase the pressure of the situation? [9L-36]

a roofer laying a ladder across a roof to work on a repair

an elephant's foot

a snowboard for winter sports

the crampons on a mountain climbers boots

Which is NOT true about a football and football boots? [9L-37]

the studs have a small contact area compared to the sole, to decrease the pressure, so they penetrate the ground easily

the sole has a much broader area than the studs so the pressure is reduced and the boot does not sink into the ground too easily

the more air that is pumped into a football, the greater the gas pressure

if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises

Which is NOT true about a football and football boots? [9L-38]

the studs have a small contact area compared to the sole, to increase the pressure, so they penetrate the ground easily

the sole has a much broader area than the studs so the pressure is increased and the boot does not sink into the ground too easily

the more air that is pumped into a football, the greater the gas pressure

if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises

Which is NOT true about a football and football boots? [9L-39]

the studs have a small contact area compared to the sole, to increase the pressure, so they penetrate the ground easily

the sole has a much broader area than the studs so the pressure is reduced and the boot does not sink into the ground too easily

the more air that is pumped into a football, the lower the gas pressure

if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises

Which is NOT true about a football and football boots? [9L-40]

the studs have a small area contact compared to the sole, to increase the pressure, so they penetrate the ground easily

the sole has a much broader area than the studs so the pressure is reduced and the boot does not sink into the ground too easily

the more air that is pumped into a football, the greater the gas pressure

if the temperature rises during a match, the plastic of the ball becomes harder and the gas pressure decreases

[9L-41] A spanner is 10 cm long (d), and is turned with a force of 20 N (F). What is the applied turning effect of the force or its moment?

200 Ncm

2 N/cm

0.5 cm/N

30 cmN

[9L-42]A spanner is 20 cm long (d), and is turned with a force of 5 N (F). What is the applied turning effect of the force or its moment?

0.25 N/cm

100 Ncm

4 cm/N

25 cmN

[9L-43] A spanner is 14 cm long (d), and is turned with a force of 7 N (F). What is the applied turning effect of the force or its moment?

2 cm/N

0.5 N/cm

98 Ncm

21 cmN

[9L-44] A spanner is 0.4 m long (d), and is turned with a force of 10 N (F). What is the applied turning effect of the force or its moment?

10.4 mN

2.5 N/m

0.04 m/N

4 Nm

[9L-45] A spanner is a useful tool to apply the turning effect of a force or a moment. Which is a FALSE statement about the situation?

only in tightening, and not loosening, a nut, must the spanner overcome the force of friction

the axis of the bolt acts as the 'lever pivot point'

applying 'loosening oil' to the bolt and nut reduces friction

the shorter the spanner, the smaller is the maximum turning force that can be produced

[9L-46] A spanner is a useful tool to apply the turning effect of a force or a moment. Which is a FALSE statement about the situation?

in tightening or loosening a nut, the spanner must overcome the force of friction

the middle of the spanner acts as the 'lever pivot point'

applying 'loosening oil' to the bolt and nut reduces friction

the shorter the spanner, the smaller is the maximum turning force that can be produced

[9L-47] A spanner is a useful tool to apply the turning effect of a force or a moment. Which is a FALSE statement about the situation?

in tightening or loosening a nut, the spanner must overcome the force of friction

the axis of the bolt acts as the 'lever pivot point'

applying 'loosening oil' to the bolt and nut reduces the contact surface between them

the shorter the spanner, the smaller is the maximum turning force that can be produced

[9L-48] A spanner is a useful tool to apply the turning effect of a force or a moment. Which is a FALSE statement about the situation?

in tightening or loosening a nut, the spanner must overcome the force of friction

the axis of the bolt acts as the 'lever pivot point'

applying 'loosening oil' to the bolt and nut reduces friction

the shorter the spanner, the bigger the maximum turning force that can be produced

[9L-49] Which statement is NOT true?

gases are easy to compress to a smaller volume because of the weak forces between the particles

liquids are difficult to compress to a smaller volume because there is little space between the particles

solids are almost impossible to compress to a smaller volume because there is almost no space between the particles

the higher the pressure, the more a gas will dissolve in a liquid

[9L-50] Which statement is NOT true?

gases are easy to compress to a smaller volume because of lots space between the particles

liquids are easy to compress to a smaller volume because there is a little space between the particles

solids are almost impossible to compress to a smaller volume because there is almost no space between the particles

the higher the pressure, the more a gas will dissolve in a liquid

[9L-51] Which statement is NOT true?

gases are easy to compress to a smaller volume because of lots space between the particles

liquids are difficult to compress to a smaller volume because there is little space between the particles

solids are almost impossible to compress to a smaller volume because the attractive forces between the particles are so strong

the higher the pressure, the more a gas will dissolve in a liquid

[9L-52] Which statement is NOT true?

gases are easy to compress to a smaller volume because of lots space between the particles

liquids are difficult to compress to a smaller volume because there is little space between the particles

solids are almost impossible to compress to a smaller volume because there is almost no space between the particles

the higher the pressure, the less a gas will dissolve in a liquid

[9L-53] Which statement is FALSE about being trodden on by a stiletto heeled shoe?

the stiletto heel produces a low pressure situation

the smaller the under surface of the stiletto heel, the higher the pressure created

the stiletto heel causes a high pressure because a significant weight acts on a small surface area

it is less painful if trodden on by the front part of the shoe, rather than the stiletto heel, because the weight of the person is spread over a larger area

[9L-54] Which statement is FALSE about being trodden on by a stiletto heeled shoe?

the stiletto heel produces a high pressure situation

the smaller the under surface of the stiletto heel, the lower the pressure created

the stiletto heel causes a high pressure because a significant weight acts on a small surface area

it is less painful if trodden on by the front part of the shoe, rather than the stiletto heel, because the weight of the person is spread over a larger area

[9L-55] Which statement is FALSE about being trodden on by a stiletto heeled shoe?

the stiletto heel produces a high pressure situation

the smaller the under surface of the stiletto heel, the higher the pressure created

the stiletto heel causes a high pressure because a small weight acts on a large surface area

it is less painful if trodden on by the front part of the shoe, rather than the stiletto heel, because the weight of the person is spread over a larger area

[9L-56] Which statement is FALSE about being trodden on by a stiletto heeled shoe?

the stiletto heel produces a high pressure situation

the smaller the under surface of the stiletto heal, the higher the pressure created

the stiletto heel causes a high pressure because a significant weight acts on a small surface area

it is less painful if trodden on by the front part of the shoe, rather than the stiletto heel, because the weight of the person is spread over a smaller area

[9L-57] The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. If d1 is 10 cm, d2 120 cm and the pull down force F2 required is 2 N, what punch force F1 is produced?

24 N

2.4 N

120 N

60 N

[9L-58] The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. If d2 is 80 cm and the pull force F2 used is 4 N, what is the maximum length d1 can be to produce a minimum required punch force F1 of 40 N?

2 cm

8 cm

4 cm

10 cm

[9L-59] The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. If d1 is 9 cm, d2 108 cm and the punch force F1 required is 60 N, what is the minimum pull down force F2 required?

54 N

1.8 N

5 N

12 N

[9L-60] The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. When d1 is 12 cm, the punch force required F1 is 36 N if a pull-down force F2 of 3N is applied. What is the minimum length of the lever d2 required to punch the hole?

108 cm

72 cm

60 cm

144 cm

[9L-61]Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?

liquids are good to use because they are fluid and readily compressed to a smaller volume

although very fluid, gases are no good because they are too easily compressed to a smaller volume

although not easily compressed to a smaller volume, solids are no good because they are not fluid

if air gets into a hydraulic system, the system becomes less effective because air is readily compressed to a smaller volume

[9L-62]Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?

liquids are good to use because they are fluid and not readily compressed to a smaller volume

although not very fluid, gases are good because they are easily compressed to a smaller volume

although not easily compressed to a smaller volume, solids are no good because they are not fluid

if air gets into a hydraulic system, the system becomes less effective because air is readily compressed to a smaller volume

[9L-63]Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?

liquids are good to use because they are fluid and not readily compressed to a smaller volume

although very fluid, gases are no good because they are too easily compressed to a smaller volume

although easily compressed to a smaller volume, solids are good because they are not too fluid

if air gets into a hydraulic system, the system becomes less effective because air is readily compressed to a smaller volume

[9L-64]Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?

liquids are good to use because they are fluid and not readily compressed to a smaller volume

although very fluid, gases are no good because they are too easily compressed to a smaller volume

although not easily compressed to a smaller volume, solids are no good because they are not fluid

if air gets into a hydraulic system, the system becomes less effective because air readily leaks out

[9L-65] A person is standing on both feet, with flat trainers, each of which has an ground contact area of 0.025 m2. If the person weighs 800 N, what pressure is created on the ground?

16000 N/m2

32000 N/m2

0.2 N/m2

2000 N/m2

[9L-66] An elephant is standing on all of its feet, each of which has an ground contact area of 0.08 m2. If the elephant weighs 50000 N, what pressure is created on the ground?

625000 N/m2

156250 N/m2

0.2 N/m2

2000 N/m2

[9L-67] A ski design team has to take into account the pressure created by the skier on the surface of deep snow. They need to the calculate the effects of the variables which are (i) area of one ski, (ii) weight of skier, (iii) pressure created by the skier on the snow and (iv) the pressure the snow can take without the skier sinking in too much! If the maximum acceptable snow pressure is 5000 N/m2, for a single ski surface area of 0.15 m2, what is the maximum weight the skier can be?

33333 N

375 N

750 N

15000 N

[9L-68] A ski design team has to take into account the pressure created by the skier on the surface of deep snow. They need to the calculate the effects of the variables which are (i) area of one ski, (ii) weight of skier, (iii) pressure created by the skier on the snow and (iv) the pressure the snow can take without the skier sinking in too much! If the maxium acceptable snow pressure is 4000 N/m2, what is the minimum single ski surface area acceptable, for a skier of weight 800 N?

0.1 m2

0.4 m2

5 m2

0.2 m2

A bag of sugar has a base of 6 cm x 10 cm. If it weighs 18 N, what pressure does it create standing on a shelf? [9L-69]

0.3 N/cm2

3 N/cm2

1.8 N/cm2

18 N/cm2

A stiletto heal has a base area of 3 cm2. If the woman weighs 750 N, what pressure does she create on the floor when standing on one heel? [9L-70]

250 N/m2

250 N/cm2

2250 N/m2

2250 N/cm2

A waste skip a base of 2m x 4m. If it weighs 10000 N when full, what pressure does it create when standing on the road? [9L-71]

5000 N/m2

5000 N/cm2

1250 N/m2

1250 N/cm2

A brick has a base of 10 cm x 25 cm and weighs 30 N. what pressure does a stack of ten bricks create simulating the pressure created by a low wall? [9L-72]

3 N/m2

3 N/cm2

2.5 N/cm2

1.2 N/cm2

Which statement is NOT true ? [9L-73]

the base of a dam is wider at the bottom than the top because that is where the lowest pressure is

the pressure in water increases with increase in depth of water

the pressure in water acts in all directions

the deeper a diver goes to examine the dam wall, the more nitrogen from the air supply dissolves in the blood

Which statement is NOT true ? [9L-73]

the base of a dam is wider at the bottom than the top because that is where the greatest pressure is

the pressure in water decreases with increase in depth of water

the pressure in water acts in all directions

the deeper a diver goes to examine the dam wall, the more nitrogen from the air supply dissolves in the blood

Which statement is NOT true ? [9L-75]

the base of a dam is wider at the bottom than the top because that is where the greatest pressure is

the pressure in water increases with increase in depth of water

the pressure in water acts only in a downward directions

the deeper a diver goes to examine the dam wall, the more nitrogen from the air supply dissolves in the blood

Which statement is NOT true ? [9L-76]

the base of a dam is wider at the bottom than the top because that is where the greatest pressure is

the pressure in water increases with increase in depth of water

the pressure in water acts in all directions

the deeper a diver goes to examine the dam wall, the less nitrogen from the air supply dissolves in the blood

Which word matches the phrase can be readily reduced in volume under pressure? [9L-7]

compressible

incompressible

pneumatic

hydraulic

Which word matches the phrase cannot be readily reduced in volume under pressure? [9L-78]

compressible

incompressible

pneumatic

hydraulic

Which word matches the phrase a device that uses compressed air? [9L-79]

compressible

incompressible

pneumatic

hydraulic

Which word matches the phrase a device that works off pressure transmitted through a liquid in a pipe or cylinder? [9L-80]

compressible

incompressible

pneumatic

hydraulic

Which is NOT true about the function and nutrition of your bone and muscle system? [9L-81]

to raise your arm the biceps contract and the triceps contract

to lower or straighten your arm the biceps relax and the triceps contract

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear

Which is NOT true about the function and nutrition of your bone and muscle system? [9L-82]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps contract and the triceps contract

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear

Which is NOT true about the function and nutrition of your bone and muscle system? [9L-83]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps relax and the triceps contract

cartilage is a harder material between the bones of a joint and reduces friction that would cause pain and wear

cartilage is a harder material between the bones of a joint and acts as a binding agent to minimise the chance of fracture damage

Which is NOT true about the function and nutrition of your bone and muscle system? [9L-84]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps relax and the triceps contract

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a harder material between the bones of a joint and increases friction to reduce pain and wear

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase your arm acting to lift an object? [9L-85]

a lever

a pivot point or fulcrum

a moment

a force

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase the point where the humerus and ulna bones are linked? [9L-86]

a lever

a pivot point or fulcrum

a moment

a force

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase the weight of a lifted object x the length of your arm? [9L-87]

a lever

a pivot point or fulcrum

a moment

a force

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase the unit of any weight you lift? [9L-88]

a lever

a force

a moment

a newton

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase produced by any push or pull of your arm? [9L-89]

a force

a lever

a moment

a newton

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the units of the effect of a turning force? (e.g. as you bend your arm to lift something) [9L-90]